class Car(object):
    total_cars = 0
    def __init__(self, make, model):
        self.make = make
        self.model = model

    def accelerate(self):
        print(f"一辆{self.make}的{self.model}正在加速")

car1 = Car("Ford", "Mustang")
car1.accelerate()
# print(car1.total_cars)
# car1.total_cars = 1
car2 = Car("Honda", "Accord")